/**
 * RISERVATI - Base Styles
 * CSS Reset and typography foundation
 */

/* ===== CSS Reset ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background: var(--color-bg);
  overflow-x: hidden;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: -0.5px;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -1px;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
}

h3 {
  font-size: var(--font-size-2xl);
}

p {
  line-height: var(--line-height-relaxed);
}

/* ===== Links ===== */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-normal);
}

a:hover {
  color: var(--color-primary);
}

/* ===== Focus States ===== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: var(--shadow-glow);
}

/* ===== Selection ===== */
::selection {
  background: var(--color-primary);
  color: #fff;
}

/* ===== Lists ===== */
ul, ol {
  list-style: none;
}

/* ===== Images ===== */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== Gradient Text Utility ===== */
.gradient-text,
.highlight {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Screen Reader Only ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===== Skip Link (Accessibility) ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--color-primary);
  color: #000;
  padding: 12px 24px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  z-index: 10001;
  transition: top 0.3s ease;
}

.skip-link:focus {
  top: 0;
  outline: 3px solid #fff;
  outline-offset: 2px;
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== High Contrast Mode Support ===== */
@media (prefers-contrast: high) {
  :root {
    --color-text-secondary: #c8d5e3;
    --color-text-muted: #a8b8c8;
    --color-border: #4a4a5a;
  }
}

/* ===== Container ===== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
}